我们必须建设天生绿色的网络,而不仅仅是改造为绿色。
"The use of traveling is to regulate imagination by reality, and instead of thinking how things may be, to see them as they are."
所以,在收成好的年头,百姓就仁义善良;遇到荒年,那么百姓也会吝啬而凶恶。